Simplified would be : (3x^2 - 1) * (4x - 3)
The bill after applying the coupon = 31.84*(85%) = 27.064
so each of them will pay : 27.064/3 = $9.021
Total units would be: 3+4 = 7
value of 1 unit = 28/7 = 4
ratio would be 3(4) & 4(4) = 12 & 16
Answer:

Step-by-step explanation:
Based on the given conditions, formulate: 
Calculate the product or quotient: 240
get the result: 240
Answer: 240
To find this answer, we had to use the expression 80 * 3, therefore making it the answer.
Answer:
Answers 2,3, and 4 are all biased.
Step-by-step explanation:
She has to check ALL her patients to be unbiased. Otherwise she is showing favoritism and bias.